Compared to color camera, B/W camera has some advantages, such as, low illumination, high resolution and inexpensive. In the place with inadequate lighting or without lighting device, BW camera is a good choice if you want to detect the location or movement of a scene.
Low illumination. Compared to color camera, BW camera get clearer images under the same lighting condition
Low price but high quality and resolution.
Suitable for surveillance at night
Fit for some place unsuitable to install IR infrared light
Tiny, only a thumb size, 22mm X 22mm
Low noise in the images
If equipped with IR light additionally, you can get images which can’t be seen by naked eyes